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第２４章 核化学▲课文中的问题１．放射性同位素镭２２６衰变产生一种氡元素的同位素和阿尔法射线。镭（Ｒａ）的原子序数是８８；氡（Ｒｎ）的原子序数是８６。写出这种衰变的配平的方程式。２．铅（Ｐｂ）的一种放射性同位素可衰变产生铋（Ｂｉ）的一种同位素和贝塔射线
Chapter 24 Nuclear Chemistry ▲ Questions in the Text 1. The radioisotope radical 226 decays to produce a helium elemental isotope and an alpha ray. The radium (Ra) has an atomic number of 88; the enthalpy (Rn) has an atomic number of 86. Write the trim equation for this decay. 2. A radioactive isotope of lead (Pb) decays to produce an isotope of beta (Bi) and beta radiation